If a Venom Counter is placed on a monster with 0 ATK, since the ATK of that monster is not reduced to 0 by the effect of "Venom Swamp", that monster is not destroyed.[3]

Previously Official Rulings

These TCG rulings were issued by Upper Deck Entertainment and have since been deemed unofficial by Konami.[5] They were previously considered official and can still be correct, as long as they follow the official gameplay rules, or unless Konami has issued a ruling that says otherwise. References: [6][7][8][9][10][11][12][13][14]